207940719

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{79}}^1\times {\mathrm{101}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 347811840

約数和(自身を除く): 139871121

約数列:

[1, 3, 7, 17, 21, 51, 73, 79, 101, 119, 219, 237, 303, 357, 511, 553, 707, 1241, 1343, 1533, 1659, 1717, 2121, 3723, 4029, 5151, 5767, 7373, 7979, 8687, 9401, 12019, 17301, 22119, 23937, 26061, 28203, 36057, 40369, 51611, 55853, 98039, 121107, 125341, 135643, 154833, 167559, 294117, 376023, 406929, 582467, 686273, 877387, 949501, 1747401, 2058819, 2632161, 2848503, 4077269, 9901939, 12231807, 29705817, 69313573, 207940719]

約数ペア:

[(1, 207940719), (3, 69313573), (7, 29705817), (17, 12231807), (21, 9901939), (51, 4077269), (73, 2848503), (79, 2632161), (101, 2058819), (119, 1747401), (219, 949501), (237, 877387), (303, 686273), (357, 582467), (511, 406929), (553, 376023), (707, 294117), (1241, 167559), (1343, 154833), (1533, 135643), (1659, 125341), (1717, 121107), (2121, 98039), (3723, 55853), (4029, 51611), (5151, 40369), (5767, 36057), (7373, 28203), (7979, 26061), (8687, 23937), (9401, 22119), (12019, 17301)]